Modified Polyolefin Resin Composition Adhesion Solvent Reduction
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Solution Overview
Problem
Polyolefin resins face challenges with poor adhesion to substrates, limited fluidity at low temperatures, and environmental concerns due to solvent use in binder compositions.
Innovation Solution
A modified polyolefin resin composition comprising an acid-modified polyolefin resin, polyetheramine, and a compound with a polymerizable unsaturated group, which provides improved adhesion, fluidity, and reduces solvent use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If chlorinated polyolefin resins are used as binder resins to improve adhesion to polyolefin substrates, then adhesion is improved, but the range of adhesion targets is limited and environmental harm increases due to organic solvent use
Solution Approach 1:
The invention changes the chemical composition parameters by using acid-modified polyolefin resin instead of chlorinated polyolefin resin, and formulating with polyetheramine and compounds having polymerizable unsaturated groups. This parameter change achieves sufficient adhesion to polyolefin substrates while eliminating the need for organic solvents like toluene and xylene, thereby resolving the contradiction between adhesion improvement and environmental harm reduction
Solution Approach 2:
The invention creates a composite binder composition by combining acid-modified polyolefin resin with polyetheramine and compounds having polymerizable unsaturated groups. This composite material approach provides both the adhesion properties of polyolefin resins and the functionality of polymerizable compounds, eliminating organic solvent requirements while maintaining strong bonding to polyolefin substrates
2Strength
If mixtures of chlorinated polyolefin resins with acrylic, urethane, or polyester resins are used to improve adhesion properties, then adhesion is improved, but fluidity at low temperatures deteriorates
Solution Approach 1:
The invention changes the chemical composition by selecting acid-modified polyolefin resin with specific molecular weight and branching characteristics, combined with polyetheramine having controlled molecular weight and structure. These parameter changes ensure the composition maintains adequate fluidity at low temperatures (including -5°C) while achieving sufficient adhesion to polyolefin substrates
Solution Approach 2:
The invention introduces local quality differences by incorporating compounds having polymerizable unsaturated groups that can undergo crosslinking reactions. This creates a system where the binder remains fluid during application (easy operation) but develops strong adhesive properties after curing, resolving the contradiction between fluidity and adhesion
3Strength
If binder compositions dissolved in organic solvents are used to achieve good adhesion, then adhesion is improved, but environmental harm increases due to solvent release into the atmosphere
Solution Approach 1:
The invention extracts and eliminates organic solvents from the binder composition formulation. By developing a solvent-free system using acid-modified polyolefin resin, polyetheramine, and compounds with polymerizable unsaturated groups, the invention achieves good adhesion to polyolefin substrates without releasing harmful solvents like toluene and xylene into the atmosphere, thereby resolving the contradiction between adhesion performance and environmental protection
Solution Approach 2:
The invention uses polyetheramine as an intermediary substance that facilitates adhesion between the acid-modified polyolefin resin and polyolefin substrates without requiring organic solvents. The polyetheramine acts as a coupling agent that provides both compatibility with polyolefin surfaces and sufficient bonding strength, eliminating the need for harmful solvent mediators
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composition offers sufficient water resistance, fluidity within a specific temperature range, and strong adhesion to polyolefin substrates, while minimizing solvent emissions.
Implementation Method 1
an acid-modified polyolefin resin (A)
Implementation Method 2
a polyetheramine (B)
Implementation Method 3
a compound having a polymerizable unsaturated group (C)
Data Source
AI summary
The present invention provides a modified polyolefin resin composition comprising an acid-modified polyolefin resin (A), a polyetheramine (B), and a compound having a polymerizable unsaturated group (C).